Скачать или смотреть Flutter / New App PJ / #4 / StatefulWidget & State / createState & setState / Beginner

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Widget
Methods
Properties

main.dart

StatelessWidget
MyApp
build()
return
MaterialApp
title:
theme:
home:
MyHomePage
title:

StatefulWidget
MyHomePage
createState()
_MyHomePageState

State
_MyHomePageState
_incrementCounter()
setState()

build()
return
Scaffold
...